GMA system powder coating with smooth moire texture effect

The invention discloses a GMA system powder coating with a smooth moire texture effect, and relates to the technical field of powder coatings, the GMA system powder coating comprises the following raw materials: an epoxy group functionality composition, a carboxyl functionality composition, a leveling agent, a degassing agent and/or a pigment filler, wherein the epoxy group functionality composition is composed of at least one of epoxy resin and triglycidyl isocyanurate, and acrylic resin containing glycidyl groups. The powder coating does not contain a moire agent and can be prepared through a one-step extrusion construction process, the raw materials contain the epoxy group functionality composition, the epoxy group functionality composition serves as a curing agent to be subjected to a cross-linking reaction with the carboxyl group functionality composition, smooth moire textures can be provided, the moire textures are clear, uniform and good in continuity, the interiors of moire patterns are flat, the dec